296 sr java developer jobs at 96 companies in Hagerstown, MD
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Sr. Java/ReactJS Developer
Herndon, Virginia, United States
$140k-$165k/yrRemoteFull Time
BDR Solutions: Provider of IT, engineering, and consulting for federal agencies.
4+ YOEUS citizen with active IRS MBI, 4+ years ReactJS experience, Java/Spring Boot backend, enterprise IAM (SSO/OAuth2/SAML/OIDC/RBAC), Section 508/WCAG 2.1 accessibility, and testing/validation experience.
NeatDevs: A federal contracting delivering secure technology solutions for government agencies.
5+ YOEBachelor's degree and 5+ years in Java development required; Angular or React experience expected. U.S. citizenship and ability to obtain DHS/CBP Public Trust required.
Global Alliant: Provides IT modernization and software development for government agencies
5+ YOE5+ years JVM development with Java/Kotlin/Scala, strong Apache Spark experience (Spark SQL, DataFrames, Datasets), SQL, AWS, Git; US citizenship and ability to undergo security clearance required.
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
5+ YOEBachelor’s degree and 5+ years of Java JEE and cloud software development experience required, including AWS, enterprise systems, SQL, and CI/CD. U.S. citizenship and ability to obtain Public Trust required.
Laansu: Provides IT services and software development for federal agencies.
5+ YOEBachelor's degree in computer science or related field; 5–10 years software development experience, including Java, web applications, relational databases, Angular, cloud deployment, Docker, CI/CD, and source control.
AxonNASDAQ: AXON: Develops weapons and software for law enforcement and safety.
8+ YOE8+ years software development; experience designing highly available cloud-based systems; backend experience with Java/Scala/Go/C#; SQL/NoSQL data stores; bachelor's in CS/Engineering.
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
5+ YOE5+ years professional software development and programming experience, experience leading design/architecture, Java experience, distributed systems and mentoring experience.
Peraton: National security and mission-critical government technology services provider.
8+ YOEBachelor’s with 8 years, master’s with 6, or PhD with 4 years relevant experience; Linux, Bash/Python, Java, OpenShift, and DoD IAT Level II certification required, with active TS/SCI clearance and polygraph.
VTG: Provides force modernization and digital transformation for defense agencies.
Active TS/SCI with polygraph required; strong full‑stack skills with Angular, Spring Boot, Java; experience with APIs, DevOps/CI-CD, microservices, AWS, Python, Kubernetes; bachelor\u0002s degree in CS or related field.
VTG: Provides engineering and digital modernization solutions for national security.
Must have active TS/SCI with poly on day one; strong full-stack skills with Angular, Spring Boot, Java; experience with APIs, agile, DevOps/CI/CD, microservices, accessibility, test automation, GitHub, Jenkins, JIRA, AWS (Lambda), Python, and Kubernetes. Bachelor’s in CS or related field.
Herndon or King of Prussia or Sunnyvale or Palo Alto or New York City or Newark or Denver or Stratford or Moorestown or Dallas or Fort Worth or Orlando or Grand Prairie or Marietta or Camden or Lexington or Ocala or Lufkin
$88k-$228k/yrOnsiteFull Time
Lockheed MartinNYSE: LMT: Designs and manufactures advanced aerospace, defense, and security systems.
3+ YOE3+ years developing backend software on Linux with C/C++ or Java; Agile experience; complex application testing/debugging; active TS/SCI clearance; bachelor's degree typically required.
Lone Tree or Sparks or Longmont or Hagerstown or Herndon or Englewood
$143k-$197k/yrHybridFull Time
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
10+ YOE10+ years experience in AI/ML with expertise in transformers, generative models, reinforcement learning, and production deployment; bachelor's in STEM or equivalent experience; proficiency in Python/C++/C#/Java and ML frameworks; ability to obtain Secret clearance.
Hampton or Annapolis Junction or Alexandria or Chantilly or Washington or Reston or McLean or Herndon or Bethesda or Catonsville or Frederick or Ashburn
$144k-$268k/yrHybridFull Time
IBMNew York Stock Exchange: IBM: Global technology providing enterprise software, cloud, and consulting.
4+ YOEU.S. citizen with TS/SCI clearance (or immediate DISS eligibility), Bachelor’s degree, 4+ years Python or Java, hybrid cloud/app development, databases, ETL, algorithm design, CI/CD and stakeholder interfacing.
CTIS: Provides health informatics and IT solutions for clinical research.
5+ YOE5+ years migrating Java/J2EE applications to AWS, strong Java/J2EE skills (Spring,Hibernate,JSF), experience with Docker,Kubernetes,CloudFormation or Terraform, database migration and CI/CD, strong problem-solving and communication.
Peraton: Provides advanced technology and mission support for government agencies.
4+ YOERequires a degree with 4–8 years of relevant experience or equivalent experience, Linux, Bash, Python, Java, OpenShift, DoD IAT Level II certification, and active TS/SCI clearance with polygraph.